president obama and mitt romney keeping a low profile today. they are prepping for wednesday's first presidential debate. we have learned that senator john kerry is going to play the role of mitt romney in the president's practice sessions. ohio senator rob portman is portraying the president in mitt romney's debate preps. >>> general motors is recalling more than 40,000 cars. it is concerned about fuel pump modules that could crack and cause a fire. the recall affects the 2007 to 2009 chevrolet cobalt and pontiac g5. gm will replace the fuel part for free. >>> yes, it is over officially. regular nfl refs will be back on the field tomorrow. the refs union formally ratify add new contract today. the nfl agreed to a deal with the union earlier this week which allowed those refs to return on thursday to a standing "o." critics said the performance of the replacement refs hurt the integrity of the game. >>> and winds ripping through the japanese island of okinawa is all from typhoon jelawat. at least 50 people suffered injuries while more than 270,